React Js Markdown Previewer Marked js not working

1

My code

const markedText = marked(props.textMarkdown, { breaks: true });. I included this line inside my SplitView.js.

But when i type # This is line It does not render correct text in Previewer instead it renders <h1 id="this-is-inital-state-text">This is inital state text</h1> inside Previewer.

I am not using render properly ??